Zhenghao extruded grade PEI polyetherimide board rods have characteristics such as high toughness, high impact, high gloss, high temperature resistance, and high flow. The following is a detailed explanation of these characteristics: PEI polyetherimide resin itself has excellent ductility and practical impact resistance, and can maintain its ductility even in the temperature range below zero to 200 ℃. Through a special extrusion process, Zhenghao extruded grade PEI board rods can further optimize their toughness and impact strength, enabling them to perform well in various applications. During the manufacturing process, Zhenghao extruded grade PEI board rods can present a high gloss surface effect through fine extrusion and surface treatment techniques. This high gloss not only enhances the aesthetic appeal of the product, but also strengthens its applicability in certain specific applications, such as those that require high reflectivity or transparency.